US: Bicycle Helmet Safety Institute
bhsi.org
FAQ, consumer guide, research resources, newsletter, helmet laws, production models, contact information and links.
Bicycle Helmet Research Foundation
cyclehelmets.org
Presents analysis and commentary about scientific studies on bicycle helmet efficiency. The effects of compulsory helmet laws on cycling is also addressed.
Head Protection Research Laboratory
hprl.org
Promoted as a "non-profit public benefit research organization", the HPRL tests head protection and other sports related surfaces and materials to ASTM, CPSC, DOT, and SFI standards.
Snell Memorial Foundation
smf.org
Not-for-profit organization dedicated to research, education, testing and development of helmet safety standards
World Health Organization Helmet Initiative
whohelmets.org
Laws, resources, links, news, publications, mission statement and contact information.
eMedicine Health - Bicycle and Motorcycle Helmets
emedicinehealth.com
Consumer health resource center providing information on the value of wearing head protection while cycling. Content is general purpose.